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Table 3 Efficiency of stepwise analysis

From: IGENT: efficient entropy based algorithm for genome-wide gene-gene interaction analysis

Model Powera in Stepwise approach Power in exhaustive approach ratio of powerb Computation in stepwise approachc ratio of computationd
1 0.69 1.00 0.69 148.4 0.12
2 0.71 0.92 0.77 149.7 0.12
3 0.67 0.80 0.84 154.7 0.13
4 0.87 0.94 0.93 147.6 0.12
5 0.62 0.88 0.70 147.0 0.12
6 0.63 0.96 0.66 145.3 0.12
7 0.19 0.25 0.76 167.3 0.14
8 0.15 0.17 0.88 445.6 0.36
  1. a Detection probability,
  2. b the ratio of power between stepwise approach and exhaustive approach
  3. c Average number of combinations to be computed in stepwise approach
  4. dComputation ratio is the ratio of computation amount of stepwise approach and computation amount of exhaustive approach. The computation of exhaustive approach is calculated using 2C50 = 1225.